helloWorld.Person = function(options){
	var defaults = { 
		firstName:     'Bill', 
		lastName:     'Gates'
	}; 
	
	options = $.extend({}, defaults, options); 
	var that = this;
	
	this.firstName = options.firstName;
	this.lastName = options.lastName;
	
	this.getFullName = function(){
		return that.firstName + ' ' + that.lastName;
	};
};